Improvement in double-barreled guns



E. E. EUX au WHEELER.

Double-Barrelled Guns,

Patented Nov. 6, 1877.

'ATTEET fNvENfJQRS UNITED STATES PATENT OFFICE..

GEORGE H. FOX AND HENRY F. WHEELER, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN DOUBLE-BRRE'LED GUNS.

Specification forming part of Letters Patent No. 196,749, dated November 6, 1877; application filed June 22, 1877.

fl'o all whom it may concern:

Be it known that we, GEORGE H. FOX and HENRY F. WHEELEmof Boston, Suffolk coun-` ty, Massachusetts, have invented an Improvement in Double-Barreled Guns, of which the following is a speciiication:

Heretofore the two barrels of doubled-barreled sporting-guns have been united by iiattening the adjacent sides and brazin g the parts together.

This operation of brazing has the eii'ect of discolorin g and sometimes scaling-on account of the great heat required-the barrels, and in some instances springs them, and is objeeti on able in other respect-s. Soft-soldering has been found sufficient for muzzle-loadin g barrels, but not for breech-loading; hence the breech ends of the latter are brazed.

Our present improvement will be found to consist inv eeeting a joint between the two barrels by intersecting one with the other in a suitable manner, notably by means of a splineand-groove connection, ordinary solder, which has no objectionable effects, being employed in connection therewith simply to prevent the slipping; of the two barrels one upon the other.

The drawings accompanying this specification represent, in-

Figure l, across-section of a pair of gunbarrels united by our method. Figs. 2 and 3 are inner side views of a portion of the two barrels, and Figs. 4 and 5 are sections of each barrel.

vIn these drawings, A and B represent the two barrels of a double-barreled gun. C represents a longitudinal rib or spline extending the length ofthe barrel A, and parallel therewith, and having its edges undercut to produce a dovetail. l) represents a channel or groove cut longitudinally in the opposite bar'- rel B, and adapted to receive the spline C with a close joint.

The rib C is pushed into the groove D until the rear ends of the barrels are iiush, and the joint is secured by soft solder, to prevent end slipping. of the two barrels one upon the other, and aid in uniting them rmly together.

A joint of j rigidity and strength than blazing. It does not' iuiduly heat or discolor the barrels, and no liability of springing the barrels in the use of solder results.

We have represented the rib and channel' which unite the two barrels as extending longitudinally of the axes of-the latter. We do not confine ourselves to this arrangement, as it may be found in practice that equally good results will follow if several ribs and channels are employed extending transversely of the said'barrels at right angles or obliquely to their axes. Nor do we confine ourselves to the employment of soft solder or other fusible metal as a means for preventing Yslipping of one barrel upon the other, for, although we prefer to proceed in this lmanner, it may be dispensed with under some circumstances.

The rib and groove, aside from any element of strength or adhesion they possess as regards the two barrels, serve an important function in the fact alone that they hold the two barrels firmly in correct position while being soldered, and in this respect alone exhibit great utility.

Weclaim- Apair of gun-barrels united by means of one or more splines and grooves, essentially as and for purposes stated.

GEO. H. FOX. HENRY F. AWHEELER.

Witnesses (l. F. WM. SMITH, WM. C. DAVIS, W. E. BOARDMAN.

this character possesses greater 

